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Finding the Fourth Proportional to 7,672.78, 10,588.98 and 4,529.98

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Solution

The fourth proportional to 7,672.78, 10,588.98 and 4,529.98 is: 6,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.78 : 10,588.98 = 4,529.98 : x
  2. Step 2: Convert to fraction form
    7,672.78/10,588.98 = 4,529.98/x
  3. Step 3: Cross multiply
    7,672.78x = 10,588.98 × 4,529.98
  4. Step 4: Simplify right side
    7,672.78x = 47,967,867.62
  5. Step 5: Solve for x
    x = 47,967,867.62/7,672.78
  6. Step 6: Final answer
    x = 6,251.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.